src/share/vm/utilities/debug.cpp

@@ -325,10 +325,11 @@
   const char* const str = "hello";
   const size_t      num = (size_t)os::vm_page_size();
 
   const char* const eol = os::line_separator();
   const char* const msg = "this message should be truncated during formatting";
+  const void (*funcPtr)(void) = (const void(*)()) 0xF;  // bad function pointer
 
   // Keep this in sync with test/runtime/6888954/vmerrors.sh.
   switch (n) {
     case  1: assert(str == NULL, "expected null");
     case  2: assert(num == 1023 && *str == 'X',

@@ -346,15 +347,20 @@
                            msg, eol, msg, eol, msg, eol, msg, eol, msg));
     case  8: vm_exit_out_of_memory(num, OOM_MALLOC_ERROR, "ChunkPool::allocate");
     case  9: ShouldNotCallThis();
     case 10: ShouldNotReachHere();
     case 11: Unimplemented();
-    // This is last because it does not generate an hs_err* file on Windows.
-    case 12: os::signal_raise(SIGSEGV);
+    // This does not generate an hs_err* file on Windows so "break"
+    // out to the ShouldNotReachHere().
+    case 12: os::signal_raise(SIGSEGV); break;
+    // There's no guarantee the bad function pointer will crash us
+    // so "break" out to the ShouldNotReachHere().
+    case 13: (*funcPtr)(); ShouldNotReachHere(); break;
 
-    default: ShouldNotReachHere();
+    default: tty->print_cr("ERROR: %d: unexpected test_num value.", n);
   }
+  ShouldNotReachHere();
 }
 #endif // !PRODUCT
 
 // ------ helper functions for debugging go here ------------